The research problem is closely related to tasks in the area of NLP. Semantic similarity, usually of sentences or documents, is discussed within paraphrase detection. Paraphrases are semantically identical sentences that convey the same meaning but use different wording. The research in this field goes beyond the sentence level and further considers documents composed of multiple sentences. The task of paraphrase detection has many applications, such as plagiarism detection [1]}, Q&A systems [2]}, and text summarization [3]}.
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